Ati 5850 with my psu ?

Hello everyone , i'm new here and my registration here was about to learn and know more informations concerning the world of GPU's . So, guys i have a question about the ati 5850 , well i have a 475w 80+ PSU and i'm thinking to buy a power color ati 5850 but i don't know if my psu is a little bit enough or not and i have q9550 2.83 with 4gb ram 800mhz , 160 gb HDD and quadro fx 580 . I asked some friends one of them have the same gpu running with a 450 watt but i still want to ask you guys if my psu can take this gpu without problems ?

Delta should do what it's rated for. Worst that'll happen is it'll be unstable. If the screen blanks out or you recieve the error "Display driver has stopped responding and has recovered" you may need a more powerful unit. Are you going to run the HD5850 -and- the FX580 together? If they're both under heavy load as well as your q9550, you might be short on power.

Thanks for the reply , and sure i'll remove the fx 580 i'll just put the 5850 only and my cpu is not overclocked and no i have no problems at all , cause the fans in the case are all silent and cool the pc runs smoothly , i wait your reply .

Okay thank you so much, i have some other questions : with my current config + ati 5850 how many power would my PSU consume and another thing how many fps i can get with my config with this ati 5850 pcs+ with 1920x1080p and with 1280x786 ?

Guys i'm back again i have some questions my friend told me that if i can get Sapphire Radeon HD 7850 Dual-X 2GB it would be much better ,my question is how many percent can this card have performed against the power color 5850 and how would be the power consumption with my psu ,and can i run it with this psu without problems or it takes more power than an ati 5850 ?

Guys i'm back again i have some questions my friend told me that if i can get Sapphire Radeon HD 7850 Dual-X 2GB it would be much better ,my question is how many percent can this card have performed against the power color 5850 and how would be the power consumption with my psu ,and can i run it with this psu without problems or it takes more power than an ati 5850 ?

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HD7850 = 130~150w (Less then the HD5850). HD7850 performance is about 10~20% faster then the HD5850.

Hi again , guys this time i want to ask about gtx 560 club 3d if it's good like 7850 and if my psu can handle it without problems , if you can give me how many power will use this card than an ati 7850 ?

Okay i've seen a lot of different answers , first of all thank you a lot guys for your answers and i noticed that the gtx 560 is less performance than 7850 but i want one answer from you guys if my 475W delta eletronics can handle this 560 or not . de.das.dude said that he run a lot of things (ati 4650 rams hdds ect ect ) with just a 250w deltatronics psu i want to tell that it's true this psu is still just awesome but for a gtx 560 i don't exactly understand from your answers if it can handle it or not . (Lazzer408 :His PSU has multiple 12v outputs ) <--- you explain that my psu is enough for a gtx 560 nah ?